Abstract: According to one embodiment, the MRI apparatus includes an RF coil apparatus having a coil element, a coil port to which the RF coil apparatus is connectible, receive circuitry receiving a signal detected by the RF coil apparatus via the coil port when neither an RF pulse nor a gradient magnetic field is being applied, and performing A/D conversion with an A/D converter, and processing circuitry detecting an abnormality based on the signal. With the RF coil apparatus being connected to the coil port, the receive circuitry switches at least one switch provided in a section between the coil element and the A/D converter between on and off, and receives the signal. The processing circuitry compares a signal of a path where the coil element and A/D converter are connected with a signal of a path where the coil element and A/D converter are not connected, and detects the abnormality.

Abstract: A medical image diagnosis apparatus according to an embodiment includes a storage circuitry and processing circuitry. The storage circuitry is configured to store therein workflow information indicating a plurality of procedures related to a preparation for an imaging process. The processing circuitry is configured to analyze an image obtained by a camera. The processing circuitry is configured to identify which of the plurality of procedures has been performed on the basis of the workflow information and a result of the analysis performed on the image and to cause an informing device to provide information about one or more of the procedures corresponding to a result of the identifying.

Abstract: According to one embodiment, a magnetic resonance imaging apparatus includes processing circuitry. The processing circuitry generates positional information related to a positional relationship between a transmitter coil and a receiver coil based on a magnetic resonance signal received from a subject. The processing circuitry adjusts an irradiation intensity of an RF pulse to be irradiated on the subject in accordance with the positional information.

Abstract: A couchtop attachment-detachment type RF coil according to an embodiment is attachable to and detachable from connector embedded in a couchtop of a magnetic resonance imaging apparatus, and forms a cable-free RF coil by being fitted with the connector and thereby joined with a coil element embedded in the couchtop, the cable-free RF coil corresponding to one area to be imaged of a subject.

Abstract: A magnetic resonance imaging apparatus includes a static magnetic field generator, a gradient magnetic field generator, a transmission coil and a processing circuitry. The static magnetic field generator generates a static magnetic field. The gradient magnetic field generator generates a gradient magnetic field. The transmission coil applies an RF pulse to an object. The processing circuitry determines high frequency pulse power absorbed by other than the object in accordance with a volume of the object and computes a specific absorption rate (SAR) with the determined high frequency pulse power.

Abstract: According to one embodiment, a magnetic resonance imaging apparatus includes processing circuitry. The processing circuitry generates positional information related to a positional relationship between a transmitter coil and a receiver coil based on a magnetic resonance signal received from a subject. The processing circuitry adjusts an irradiation intensity of an RF pulse to be irradiated on the subject in accordance with the positional information.

Abstract: According to one embodiment, the MRI apparatus includes an RF coil apparatus having a coil element, a coil port to which the RF coil apparatus is connectible, receive circuitry receiving a signal detected by the RF coil apparatus via the coil port when neither an RF pulse nor a gradient magnetic field is being applied, and performing A/D conversion with an A/D converter, and processing circuitry detecting an abnormality based on the signal. With the RF coil apparatus being connected to the coil port, the receive circuitry switches at least one switch provided in a section between the coil element and the A/D converter between on and off, and receives the signal. The processing circuitry compares a signal of a path where the coil element and A/D converter are connected with a signal of a path where the coil element and A/D converter are not connected, and detects the abnormality.

Abstract: A medical image diagnosis apparatus according to an embodiment includes a storage circuitry and processing circuitry. The storage circuitry is configured to store therein workflow information indicating a plurality of procedures related to a preparation for an imaging process. The processing circuitry is configured to analyze an image obtained by a camera. The processing circuitry is configured to identify which of the plurality of procedures has been performed on the basis of the workflow information and a result of the analysis performed on the image and to cause an informing device to provide information about one or more of the procedures corresponding to a result of the identifying.

Abstract: A couchtop attachment-detachment type RF coil according to an embodiment is attachable to and detachable from connector embedded in a couchtop of a magnetic resonance imaging apparatus, and forms a cable-free RF coil by being fitted with the connector and thereby joined with a coil element embedded in the couchtop, the cable-free RF coil corresponding to one area to be imaged of a subject.

Abstract: In one embodiment, an RF coil device includes a base board, a belt member, a first coil element, a second coil element inside the base board, and a connecting unit. Both ends of the belt member are respectively connected to mutually separated places on the base board, so that the center part of the belt member is located on the anterior surface of the base board. The belt member is curved to form airspace between the center part thereof and the anterior surface for letting an arm pass through in interdigitation state. The first coil element includes first and second partial coils inside the belt member, and becomes a loop coil element by their connection. The connecting unit detachably connects the base board to the belt member, and mutually connects the first and second partial coils in the interdigitation state.

Abstract: An image forming apparatus includes image forming sections each including a developing section having a developer bearing member and a developer supply unit and a transfer unit that transfers an image developed on a photoconductor by the developing unit onto a transfer body, a controller that controls a driving time of the developer bearing member so that developer is born on the developer bearing member during a period when image formation is not performed and the developer attached to the transfer body by the image forming sections does not overlap, a detector that detects the attached developer by each image forming section, and a specification unit that specifies the image forming section which attaches the developer to the transfer body, on the basis of a time from when the controller starts driving the developer bearing member to when the detector detects the developer attached to the transfer body.

Abstract: An image forming apparatus includes image forming sections each including a developing section having a developer bearing member and a developer supply unit and a transfer unit that transfers an image developed on a photoconductor by the developing unit onto a transfer body, a controller that controls a driving time of the developer bearing member so that developer is born on the developer bearing member during a period when image formation is not performed and the developer attached to the transfer body by the image forming sections does not overlap, a detector that detects the attached developer by each image forming section, and a specification unit that specifies the image forming section which attaches the developer to the transfer body, on the basis of a time from when the controller starts driving the developer bearing member to when the detector detects the developer attached to the transfer body.

Abstract: An image forming apparatus includes a latent image forming unit, a developing unit, replenishing unit, and a control unit. The latent image forming unit forms an electrostatic latent image corresponding to an image information signal on an image carrier. The developing unit develops the electrostatic latent image using a two-component developer in which magnetic carriers are mixed with toner to form a visible image. The replenishing unit replenishes the toner to the developing unit. The control unit controls switching between first processing, which includes idling processing for replenishing at least part of residual toner, which is to be replenished to the developing unit and remains without being replenished to the developing unit, to the developing unit and stirring the toner within the developing unit, and second processing, which includes the idling processing and density correction processing for correcting a density of the toner within the developing unit.

Abstract: A developing device includes a first transport path and a second transport path. In the first transport path, a developer containing toner and a magnetic material is transported in the axial direction of a first transport member that opposes a developer holding element by rotation of the first transport member. The second transport path includes plural flow paths that extend along the axial direction, and plural second transport members provided in the plural flow paths to transport the developer. The plural flow paths each have a length in the axial direction that is shorter than the length of the first transport path in the axial direction. Respective end portions of the first and second transport path are connected such that the developer which has flowed into the second transport path from one end of the first transport path flows into the other end of the first transport path.

Abstract: An electrically-controlled failsafe switch is included in an MRI transmit-and-receive RF coil assembly so as to protect it from induced RF currents in the event it is disconnected from an MRI system, but inadvertently left linked to strong MRI RF fields during imaging procedures using other RF coils.

Abstract: An electrically-controlled failsafe switch is included in an MRI transmit-and-receive RF coil assembly so as to protect it from induced RF currents in the event it is disconnected from an MRI system, but inadvertently left linked to strong MRI RF fields during imaging procedures using other RF coils.

Abstract: A magnetic resonance imaging apparatus includes a static magnetic field generator, a gradient magnetic field generator, a transmission coil and a processing circuitry. The static magnetic field generator generates a static magnetic field. The gradient magnetic field generator generates a gradient magnetic field. The transmission coil applies an RF pulse to an object. The processing circuitry determines high frequency pulse power absorbed by other than the object in accordance with a volume of the object and computes a specific absorption rate (SAR) with the determined high frequency pulse power.

Abstract: There is provided a developing device including a toner holding member that is rotatably provided to face an image holding member and holds and transports a nonmagnetic single-component toner toward a development region to develop an electrostatic latent image on the image holding member, a supplying member that is rotatably provided in elastic contact with the toner holding member to supply the toner from a contact region therebetween to the toner holding member, a toner replenishing unit that faces a replenishment region at a portion apart from the contact region to replenish a new toner, and a regulating member that is provided on a downstream side of the contact region in a rotation direction thereof and on an upstream side of the development region to triboelectrically charge the toner held on the toner holding member and regulate the amount of toner provided for the development.

Abstract: An electrically-controlled failsafe switch is included in an MRI transmit-and-receive RF coil assembly so as to protect it from induced RF currents in the event it is disconnected from an MRI system, but inadvertently left linked to strong MRI RF fields during imaging procedures using other RF coils.

Abstract: A developing device includes a toner holding member that is rotatably installed opposite to an image holding member which holds a latent image and circularly moves, a supply member that has a rough surface capable of capturing toner, a toner supply portion that supplies new toner, and a restriction member that restricts an amount of toner used for development, wherein the toner supply portion connects an accommodation chamber to a developing chamber via a toner transport path, wherein a developing chamber side opening is located on a lower side of an accommodation chamber side opening of the toner transport path, and wherein a width size in a direction following a rotation direction of the supply member in the developing chamber side opening of the toner transport path is set to be smaller than an outer diameter of the supply member in a projection plane viewed from the supply member side.